{"id":"a2e6726c-9b3a-4bbb-8c1b-7dc3114056d5","shortId":"p4tvD3","kind":"x402","title":"Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.","tagline":"Pay-per-call premium API access on Base via x402 — $0.02/request in USDC.","description":"This endpoint at lowpaymentfee.com provides \"Premium API Access\" via the x402 payment protocol. The site hosts a broad catalog of pay-per-request APIs spanning data & analytics, AI/ML inference (sentiment analysis, summarization, classification, embeddings), finance & Web3 (price feeds, exchange rates, token quotes, gas estimates), and infrastructure utilities (geocoding, validation, conversion, generation). Each request costs $0.02 in USDC on the Base network, with no API keys, no rate limits, and no minimum commitments required.\n\nThe specific endpoint `/api/v1/generate/resource/79` is listed as \"Premium API Access\" and accepts HTTP POST requests. The x402 challenge confirms it is live, requesting up to 20,000 base units of USDC (0.02 USD, since USDC uses 6 decimals) per call, paid to address `0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3` on Base. Settlement uses the \"exact\" scheme with a 300-second timeout.\n\nDocumentation is extremely sparse — the docs, API, pricing, and README pages all render only a \"Connect wallet\" prompt with no further content. There is no OpenAPI spec, no request/response schema, and no examples available. The exact functionality behind `resource/79` is unclear; the site's landing page groups endpoints into categories but does not list this specific resource path, so its precise behavior cannot be confirmed from available material.","tags":[],"capabilities":["x402-payment","usdc-base","pay-per-request","no-api-key","http-post"],"categories":["api-marketplace","infrastructure"],"synonyms":["lowpaymentfee","x402 API","micropayment API","USDC pay-per-call","Base network API","premium API access"],"warnings":["No documentation available — docs, API, pricing, and README pages all show only 'Connect wallet'","No OpenAPI or schema describing request/response format for this endpoint","The specific resource path /api/v1/generate/resource/79 is not listed on the site's landing page; its exact functionality is unknown","No examples or sample responses available"],"endpointUrl":"https://lowpaymentfee.com/api/v1/generate/resource/79","protocol":"x402","transport":"http","auth":{"type":"x402","details":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/generate/resource/79","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}]},"qualityScore":"0.300","qualityRationale":"The endpoint is live (402 challenge confirmed) and pricing is clear ($0.02 USDC on Base), but there is no documentation, no OpenAPI spec, no request/response schema, and no examples. The exact functionality of resource/79 is unknown. Docs pages return only a wallet-connect prompt.","verified":false,"liveness":"unknown","lastLivenessCheck":null,"agentReviews":{"count":0,"score_avg":null,"cost_usd_avg":null,"success_rate":null,"latency_p50_ms":null,"narrative_summary":null,"summary_updated_at":null},"enrichmentModel":"anthropic/claude-opus-4.6","enrichmentVersion":2,"enrichedAt":"2026-04-18T23:21:51.499Z","embedding":[-0.024871826,-0.026626587,0.053833008,0.02645874,0.010467529,-0.04055786,-0.020050049,0.0287323,0.07501221,-0.0748291,0.014724731,-0.05291748,-0.02772522,-0.045196533,-0.03543091,0.017166138,-0.026916504,-0.0027236938,-0.040161133,0.0209198,0.0284729,-0.020019531,-0.02960205,0.039031982,0.019165039,-0.01902771,-0.008979797,0.00233078,0.0054855347,-0.034973145,0.028869629,-0.026763916,-0.0020275116,0.012199402,-0.021606445,-0.013511658,0.00065755844,0.035339355,0.023208618,-0.0041923523,-0.010650635,-0.06713867,-0.0014600754,-0.0030326843,-0.049224854,0.004638672,0.015098572,-0.022918701,0.003042221,-0.0032310486,-0.032836914,-0.00491333,-0.011054993,-0.015655518,-0.0052375793,-0.0020141602,-0.009933472,-0.0074272156,-0.007827759,0.018554688,0.011528015,-0.06097412,-0.010322571,-0.012374878,0.0013341904,0.04977417,-0.009117126,0.052459717,0.016036987,0.0513916,0.031036377,0.05456543,0.02381897,0.027893066,0.0007991791,0.0042648315,0.007255554,0.07312012,-0.024124146,-0.015975952,-0.01134491,-0.0067710876,-0.06121826,-0.006259918,-0.014472961,-0.041259766,-0.014884949,-0.0002579689,-0.026123047,0.029708862,-0.060546875,-0.0062332153,-0.011146545,0.017227173,-0.00434494,-0.00730896,-0.017791748,0.035217285,-0.0052833557,0.03982544,0.018844604,-0.034301758,0.018341064,0.017578125,0.04296875,0.04751587,0.014289856,0.018859863,0.011665344,-0.021697998,-0.023529053,0.009979248,-0.0068206787,-0.022399902,0.017990112,0.0044441223,-0.018707275,0.010948181,-0.011207581,0.023422241,-0.058624268,0.03829956,0.011749268,-0.012718201,0.013717651,-0.043884277,-0.0044288635,0.016311646,-0.026428223,-0.009376526,0.021606445,0.022125244,0.029846191,-0.007751465,-0.043273926,-0.0048294067,-0.013374329,-0.027923584,-0.048675537,-0.027496338,0.025558472,-0.035888672,0.026855469,0.028182983,-0.09375,-0.022537231,-0.054351807,0.0053482056,-0.03552246,-0.005050659,-0.0026683807,0.019561768,-0.015670776,-0.019256592,-0.01977539,-0.036956787,-0.008140564,0.026031494,-0.033935547,0.046203613,0.009162903,0.05279541,0.001745224,0.012214661,0.02708435,0.04055786,-0.0051460266,-0.08227539,-0.0892334,-0.0093307495,0.016571045,-0.014305115,-0.04812622,0.019561768,-0.008979797,-0.066711426,-0.028182983,-0.0069122314,0.00013184547,-0.052337646,-0.001789093,-0.014503479,-0.011634827,-0.009254456,-0.07141113,-0.037109375,-0.017044067,0.06585693,0.034729004,0.0052375793,0.036224365,-0.0236969,0.06933594,0.009178162,-0.01965332,-0.04840088,0.022613525,-0.02168274,0.027511597,0.008682251,-0.0043029785,-0.033599854,0.036590576,0.06085205,0.0102005005,-0.0019893646,-0.017089844,-0.045532227,-0.028320312,-0.017486572,0.00484848,0.020645142,0.015792847,0.039886475,-0.008453369,-0.03527832,0.007091522,0.030715942,0.0052948,0.05557251,-0.01486969,-0.0064048767,0.0053749084,0.012268066,-0.02319336,0.04385376,0.029708862,0.013259888,-0.031921387,-0.021697998,0.026931763,0.033050537,-0.022216797,0.0011615753,-0.016052246,0.032043457,-0.0039520264,0.02458191,0.024765015,-0.01966858,-0.012748718,-0.037017822,-0.019744873,0.033966064,0.017181396,-0.012954712,-0.039733887,-0.08441162,0.05795288,0.040893555,0.036499023,-0.013282776,0.018356323,-0.013839722,-0.0017118454,-0.051849365,0.052581787,0.07574463,-0.022338867,-0.0052337646,0.012611389,-0.010002136,-0.035308838,-0.0011024475,-0.011177063,-0.036346436,-0.023025513,0.009483337,-0.06149292,0.0016832352,0.0036449432,0.023971558,0.04977417,-0.013244629,-0.064331055,-0.028915405,0.009185791,0.009841919,-0.046966553,-0.007156372,-0.012527466,0.015853882,0.042053223,0.02104187,0.029129028,0.0032215118,0.0143966675,-0.005329132,0.003025055,-0.028152466,-0.015548706,0.010871887,-0.005634308,-0.06970215,0.010955811,0.0028877258,0.06567383,-0.048675537,0.01979065,-0.007896423,0.0063323975,0.046295166,-0.006008148,-0.057159424,0.01461792,0.029510498,0.036499023,0.05105591,0.015266418,-0.03265381,-0.012565613,0.07336426,-0.018463135,-0.022460938,0.02330017,0.0124435425,0.032562256,-0.0074691772,-0.05456543,-0.03186035,0.00137043,-0.03555298,0.028717041,-0.016052246,0.009437561,-0.025619507,-0.0034999847,-0.028656006,-0.0025787354,-0.03326416,0.021408081,-0.031311035,0.014755249,-0.0073165894,-0.007724762,0.010025024,0.019744873,-0.016342163,0.012023926,0.038513184,0.009643555,-0.010177612,-0.023162842,-0.031311035,-0.022842407,-0.0038261414,0.030059814,0.03152466,0.018203735,0.050628662,-0.042755127,0.037353516,0.03970337,0.020950317,0.028945923,-0.0035514832,0.014167786,-0.07354736,-0.058013916,-0.03173828,-0.044525146,0.03866577,0.012741089,-0.013549805,0.058898926,0.009857178,-0.012084961,-0.029586792,0.025024414,-0.04147339,-0.02180481,0.053222656,-0.001739502,-0.028213501,0.00059890747,-0.0038337708,0.006061554,0.034973145,0.011940002,0.020599365,0.07312012,0.03842163,-0.016189575,0.010124207,0.0093688965,0.008163452,0.00819397,-0.04159546,-0.027389526,-0.013969421,0.030349731,-0.01878357,-0.015792847,-0.060913086,0.06744385,0.037872314,0.07434082,0.009559631,0.0019330978,0.035095215,0.002357483,0.0031433105,-0.014450073,-0.010429382,-0.01171875,-0.04348755,0.017181396,-0.0085372925,-0.008491516,-0.02229309,0.029525757,-0.011436462,0.027008057,-0.021865845,0.06518555,0.012123108,0.0034103394,0.015670776,0.0066070557,0.0440979,0.030563354,-0.032226562,0.02659607,0.014160156,-0.04421997,-0.008087158,0.041503906,0.0052452087,-0.0037708282,-0.031280518,-0.011871338,-0.0050811768,0.00022506714,-0.03503418,-0.0052223206,0.0063552856,0.009162903,0.037384033,-0.014289856,-0.025024414,0.0052108765,-0.0027999878,-0.062347412,-0.011421204,-0.03048706,0.009422302,0.06542969,-0.042510986,0.0022583008,0.0065345764,-0.009933472,-0.0006017685,0.022247314,0.01247406,-0.0067863464,-0.023712158,0.020385742,0.0036354065,0.0178833,0.01826477,0.045410156,0.024215698,0.020446777,0.052337646,0.015106201,-0.030303955,-0.057250977,0.010154724,-0.04647827,-0.0053596497,0.009979248,-0.014595032,-0.008491516,-0.011192322,-0.021377563,-0.02078247,0.0013446808,-0.029907227,0.006072998,0.02973938,-0.036621094,-0.032409668,-0.037506104,-0.0021247864,-0.0053634644,0.07055664,0.03375244,-0.002822876,-0.06665039,-0.01550293,0.015808105,0.010482788,0.005104065,-0.015098572,-0.007858276,-0.013809204,-0.019744873,-0.020385742,-0.012832642,0.0129470825,0.0016908646,-0.013916016,0.02003479,0.017501831,0.0107421875,-0.006248474,0.011276245,0.048187256,-0.020309448,0.0015592575,-0.021987915,0.03253174,-0.009284973,-0.0046653748,-0.036468506,0.043518066,0.0063323975,0.03475952,-0.028518677,0.00642395,-0.0037136078,0.014724731,0.011627197,-0.0008673668,-0.023513794,-0.009841919,-0.051879883,-0.07556152,0.04788208,-0.022537231,0.034088135,0.016967773,0.010925293,0.014205933,-0.0016698837,-0.0062408447,0.030059814,-0.025878906,-0.015426636,-0.032043457,-0.031982422,-0.0041122437,-0.020401001,-0.023010254,0.0103302,-0.019714355,0.010429382,-0.0029907227,-0.024520874,0.016738892,-0.004890442,-0.013679504,0.024108887,0.005607605,0.007987976,0.039642334,0.011184692,-0.038879395,0.028717041,0.0013389587,0.0069122314,-0.012161255,0.04159546,0.03640747,-0.011367798,-0.0015821457,-0.014671326,-0.0061798096,-0.011428833,-0.00806427,0.008178711,0.027053833,0.005458832,-0.022537231,0.024002075,0.010353088,-0.021621704,-0.017227173,0.020553589,0.019592285,-0.031311035,0.014434814,0.026748657,0.05621338,-0.02720642,-0.005718231,0.010383606,0.035125732,0.028869629,0.021942139,-0.03137207,0.015686035,-0.016021729,0.026657104,-0.000854969,-0.00749588,0.012542725,0.004142761,0.019607544,0.020553589,0.0126571655,-0.022506714,-0.03945923,0.0067749023,0.0013895035,-0.0131073,0.01133728,0.028503418,0.009338379,-0.023849487,0.007972717,0.023864746,-0.028717041,-0.022659302,0.007827759,0.04849243,-0.012123108,-0.004508972,0.009490967,0.009140015,0.049468994,-0.05947876,-0.00869751,0.009429932,0.013267517,-0.019134521,-0.046875,-0.038116455,0.0039863586,0.03591919,0.0031547546,0.009819031,0.020751953,-0.0031528473,-0.017181396,0.039916992,0.0028362274,-0.011192322,-0.020751953,-0.039978027,0.009178162,-0.004272461,0.009002686,-0.028686523,0.00074863434,-0.009796143,-0.026657104,0.018875122,-0.0023021698,-0.005393982,-0.008308411,0.0060272217,0.029922485,0.0015697479,0.017868042,-0.022750854,-0.023880005,-0.018753052,0.006286621,0.018218994,-0.059692383,0.034362793,-0.02973938,0.00030875206,0.004219055,0.030929565,0.017623901,0.024047852,-0.000603199,0.018875122,-0.041748047,0.026626587,-0.036743164,-0.00048446655,0.00881958,-0.03543091,0.0061035156,-0.018554688,-0.024368286,0.042236328,-0.019058228,-0.01638794,-0.029052734,-0.033813477,0.0030727386,-0.047943115,0.019454956,0.038970947,0.034942627,-0.022598267,-0.005630493,-0.004196167,-0.0028305054,-0.008522034,0.023223877,-0.006336212,0.013008118,0.0121154785,0.00093126297,-0.03189087,-0.029632568,-0.011192322,0.009269714,-0.032318115,-0.039245605,-0.018798828,0.014404297,-0.010627747,0.0023612976,-0.025726318,-0.01776123,-0.013549805,-0.050354004,0.013969421,0.0014533997,0.0048103333,0.009117126,-0.017532349,0.009841919,0.010391235,-0.008659363,0.034179688,-0.002040863,-0.021743774,-0.049804688,0.00680542,0.036621094,0.012962341,-0.016860962,-0.015464783,0.00061798096,-0.016479492,-0.04849243,-0.010284424,-0.0022945404,-0.009689331,-0.003967285,0.01108551,-0.044067383,-0.00724411,-0.029418945,0.006958008,0.0134887695,0.023956299,0.020950317,0.00021576881,0.008110046,-0.012580872,-0.014602661,-0.025421143,0.025131226,0.011024475,0.013458252,0.01638794,0.04626465,0.009643555,0.0066604614,0.0018625259,-0.0008740425,0.023895264,-0.012756348,-0.00018179417,-0.010940552,-0.0007214546,-0.014205933,-0.013168335,-0.037322998,-0.003019333,0.084106445,0.0038433075,-0.0103302,-0.009979248,-0.023025513,0.018554688,0.01977539,-0.053863525,0.0061035156,-0.035736084,0.018859863,-0.019256592,0.014251709,0.008857727,0.007045746,-0.022628784,-0.061920166,4.7683716e-7,-0.0014286041,-0.01473999,-0.07141113,-0.035461426,-0.059631348,0.0007944107,0.00060653687,-0.028259277,-0.0013151169,0.014343262,-0.011268616,-0.10083008,-0.0072631836,0.047668457,0.0010118484,0.018127441,-0.03289795,0.020324707,0.0234375,-0.0435791,-0.014038086,0.025009155,-0.03149414,-0.0057144165,-0.025665283,0.027145386,-0.0053520203,-0.034606934,0.01461792,0.010795593,0.018753052,-0.006095886,0.008003235,-0.008384705,0.008659363,-0.0046195984,0.017730713,-0.0031547546,-0.012916565,0.024215698,-0.046875,0.011390686,0.039764404,0.009513855,0.006450653,0.017684937,0.038269043,-0.04763794,-0.012069702,0.034240723,0.010520935,0.04800415,-0.028182983,0.04953003,0.015083313,-0.013496399,0.045654297,0.0064582825,-0.02355957,-0.050933838,-0.015602112,0.025756836,0.0008225441,0.017562866,-0.021316528,0.0071907043,0.020050049,-0.00093364716,0.004917145,-0.014953613,-0.039764404,-0.009727478,0.01360321,0.00037670135,0.0035514832,-0.0023479462,0.017974854,0.025268555,0.040618896,0.009918213,-0.00920105,-0.0005426407,0.023590088,-0.022018433,0.0155181885,0.019470215,0.002696991,0.027008057,0.019363403,0.009223938,-0.03567505,-0.021347046,-0.043182373,-0.014633179,0.0018320084,-0.01600647,-0.0146484375,0.00022387505,0.013801575,0.0024318695,-0.010467529,0.009780884,-0.049072266,-0.02444458,-0.009429932,-0.020477295,-0.003648758,-0.008262634,0.011856079,0.012176514,-0.0012788773,0.041809082,0.018569946,-0.014656067,0.022994995,0.03591919,0.027832031,-0.016662598,-0.012641907,-0.018859863,0.00043916702,-0.004722595,-0.01939392,0.015174866,0.03390503,-0.01737976,0.009094238,0.009521484,0.024887085,-0.022827148,0.012420654,0.005168915,0.021316528,-0.017852783,0.026260376,-0.051452637,0.01550293,0.019256592,-0.0044937134,0.000072181225,-0.015548706,-0.03314209,0.016311646,-0.0034008026,-0.019317627,0.049682617,-0.011428833,0.017288208,-0.021347046,-0.019882202,-0.0000039339066,-0.04031372,-0.020233154,0.04196167,-0.0017995834,-0.014701843,0.017074585,-0.038604736,0.03652954,-0.028518677,0.016815186,-0.0047912598,-0.0057754517,-0.013664246,-0.017532349,-0.019424438,0.013771057,-0.0073432922,-0.003501892,-0.0027179718,0.040893555,0.026275635,0.027709961,0.051483154,0.017623901,0.005657196,-0.042755127,-0.021743774,-0.003255844,-0.01991272,0.0051727295,-0.020523071,0.0647583,0.047576904,0.003162384,0.025512695,0.020248413,0.029663086,0.004722595,0.005340576,-0.0056648254,0.00349617,-0.014183044,0.022018433,-0.002521515,0.040527344,-0.02760315,0.010627747,0.017745972,0.026626587,-0.021331787,0.02130127,0.075805664,0.01626587,-0.01612854,0.049438477,0.009117126,0.0048713684,-0.015411377,-0.02067566,0.042297363,-0.0047798157,0.05783081,0.04071045,0.0065689087,-0.0053634644,0.027542114,-0.021896362,-0.01448822,0.06542969,0.027145386,-0.01637268,-0.014854431,-0.0016269684,0.0026512146,-0.04272461,-0.034454346,0.013664246,-0.0007929802,0.0181427,-0.02519226,-0.005241394,-0.021377563,0.028015137,0.02911377,0.016677856,-0.012023926,0.01876831,0.034454346,0.0027008057,0.027832031,-0.014434814,0.02130127,-0.024871826,-0.031951904,0.017608643,0.012283325,-0.012069702,-0.020568848,0.0062828064,0.01828003,0.06573486,0.0440979,-0.0046043396,0.012672424,0.017669678,0.014656067,-0.0018539429,0.038909912,0.042755127,0.023757935,0.03237915,0.037628174,0.024307251,-0.035583496,0.01928711,0.0014219284,0.013748169,-0.006664276,-0.014503479,-0.0033435822,-0.028793335,0.018127441,0.009284973,-0.004058838,0.025985718,0.026885986,0.013252258,-0.012458801,-0.0027561188,0.009208679,-0.0129470825,-0.010475159,0.015609741,-0.0062446594,0.019180298,0.0049209595,0.034332275,-0.032318115,0.025146484,-0.010223389,-0.022201538,-0.002571106,0.019958496,-0.03994751,0.0007238388,-0.0057373047,0.0011138916,-0.029159546,0.017807007,0.03161621,-0.01398468,0.029342651,0.0010795593,-0.017562866,0.005710602,0.023620605,0.0032615662,0.00844574,-0.0042686462,-0.02331543,0.03265381,0.036254883,0.008728027,0.008506775,-0.016479492,0.009880066,0.0079193115,-0.018707275,-0.00082683563,-0.0062332153,-0.02772522,-0.017944336,0.005809784,0.03491211,0.025253296,0.047851562,-0.009643555,-0.0072021484,0.012313843,0.0259552,0.0058670044,0.0028095245,-0.012763977,0.014259338,-0.018035889,0.051452637,0.02720642,0.005203247,0.015625,-0.019454956,-0.023803711,0.0072021484,-0.01713562,0.024932861,-0.01499176,-0.0028934479,0.0013074875,0.030166626,-0.019805908,-0.026275635,0.0036716461,-0.010658264,-0.020370483,-0.020385742,-0.0018920898,0.01675415,0.01461792,0.045196533,0.018661499,-0.025436401,0.06719971,-0.015640259,0.054229736,-0.012886047,-0.012138367,0.04727173,0.036315918,0.030532837,0.015945435,0.0037136078,-0.031829834,-0.0041885376,0.044006348,0.023834229,0.016082764,0.0049972534,-0.025848389,0.03265381,0.004032135,0.024932861,0.004585266,-0.0014877319,0.015029907,-0.00749588,0.008010864,0.0063934326,-0.0063819885,0.0038757324,0.039916992,-0.03677368,-0.008415222,-0.016998291,-0.014038086,0.02709961,-0.006511688,-0.000013113022,0.009590149,-0.029266357,0.020355225,-0.019180298,-0.0069007874,0.0012893677,0.025970459,-0.030593872,-0.009269714,0.00030493736,0.013000488,-0.020645142,0.022903442,0.015991211,-0.0013008118,0.017669678,0.0395813,-0.016448975,0.038238525,-0.024108887,0.022125244,0.032562256,-0.00027418137,-0.014183044,0.009002686,0.005344391,-0.022994995,0.000702858,0.028182983,-0.013626099,0.003232956,-0.00497818,-0.008178711,0.014801025,0.00039052963,-0.008682251,0.0037403107,-0.0073547363,-0.0051879883,-0.00016760826,0.016067505,-0.007030487,0.0060920715,-0.008026123,-0.008148193,0.005619049,0.03527832,0.018753052,-0.04208374,-0.0026187897,0.008872986,0.01838684,-0.020233154,-0.012809753,0.00044703484,-0.036010742,0.020324707,0.026031494,-0.009239197,0.006778717,-0.021896362,0.0042800903,0.018554688,0.015899658,0.024032593,0.005962372,0.0019197464,0.024307251,-0.020080566,-0.008468628,-0.0019760132,-0.0076789856,0.0138549805,0.01184082,-0.008590698,-0.0234375,0.025421143,-0.0013656616,0.015609741,0.013893127,-0.009887695,0.022094727,-0.006706238,-0.020355225,0.0026435852,0.027893066,-0.013801575,-0.012863159,-0.02330017,0.017929077,0.041290283,-0.021606445,0.005859375,0.020095825,0.016616821,0.010444641,0.022247314,0.0018720627,0.043182373,0.019332886,-0.025512695,-0.010749817,0.013221741,-0.008056641,-0.049072266,0.017959595,0.00066423416,-0.020996094,0.022521973,0.026992798,-0.00077581406,-0.01878357,-0.015571594,-0.008132935,-0.020248413,0.012786865,-0.0074005127,0.010597229,-0.033325195,-0.0026683807,0.005493164,-0.009742737,-0.037872314,-0.017364502,-0.00034809113,-0.009170532,-0.03817749,0.008071899,-0.020904541,0.0051574707,-0.018325806,-0.0076942444,-0.009185791,0.031799316,-0.028182983,-0.01890564,0.00060510635,0.027252197,0.026260376,0.0056152344,0.03842163,-0.011955261,-0.030349731,-0.018493652,-0.0070991516,-0.013679504,0.014038086,0.0076789856,0.037994385,0.012580872,-0.010246277,0.002500534,-0.013031006,-0.0034332275,-0.008865356,-0.032226562,-0.018951416,0.021636963,0.006210327,-0.018234253,-0.0104904175,0.03475952,-0.029083252,-0.019851685,0.027786255,0.05758667,0.004016876,0.03781128,-0.016830444,-0.011550903,-0.01940918,0.006877899,-0.012237549,-0.001168251,0.020462036,0.011070251,-0.013908386,0.00038647652,0.020523071,-0.013511658,-0.0052948,0.029632568,0.00055217743,-0.0005092621,0.024429321,0.013801575,0.009933472,-0.024719238,-0.014923096,0.021499634,0.0231781,0.010658264,0.0076408386,0.0011253357,0.01751709,-0.008735657,0.008712769,0.026016235,-0.009529114,-0.03378296,-0.023376465,-0.026306152,0.022949219,0.014633179,0.008522034,-0.00831604,0.009529114,-0.029129028,-0.03414917,-0.016296387,0.019210815,0.019058228,-0.008049011,-0.010559082,0.0011663437,0.014198303,-0.02609253,0.00073862076,-0.04699707,-0.028320312,-0.00046133995,-0.025421143,0.011398315,0.01737976,-0.0066337585,-0.000849247,0.003545761,-0.0048828125,0.0032978058,0.029449463,-0.009361267,-0.0017118454,0.02861023,0.0155181885,-0.008117676,0.006755829,-0.015357971,-0.0012903214,0.026885986,0.0010089874,0.0042419434,-0.023468018,0.037506104,-0.0035991669,0.0009508133,0.021270752,-0.009056091,0.019729614,-0.024429321,0.009422302,-0.0006546974,-0.0012655258,0.027145386,-0.02911377,-0.01524353,0.008895874,-0.025985718,-0.040496826,-0.0008921623,0.024368286,0.044403076,-0.00079393387,0.041809082,-0.016586304,-0.016998291,0.014671326,-0.0027999878,-0.021484375,-0.006626129,0.03677368,-0.0057258606,-0.01776123,-0.012771606,-0.01361084,-0.029663086,-0.004837036,0.015808105,0.0057754517,-0.0043411255,0.020996094,0.014595032,0.0496521,-0.013771057,0.012756348,0.004421234,0.005844116,0.024902344,0.01259613,0.041137695,0.000043332577,-0.02281189,0.007282257,0.008964539,-0.03314209,-0.005607605,-0.014541626,0.014556885,-0.0501709,0.021377563,-0.0035190582,0.028915405,-0.027862549,0.013168335,-0.026809692,-0.010223389,-0.041931152,-0.010398865,-0.028869629,0.0025157928,0.04168701,-0.010917664,0.02003479,0.016098022,-0.032714844,0.016571045,0.04562378,0.005783081,-0.040496826,0.0062789917,0.012008667,-0.00014913082,0.008323669,0.007881165,0.0004246235,-0.031951904,0.0024089813,-0.0050735474,0.010223389,0.0017995834,0.030319214,0.008911133,-0.0011205673,-0.00016307831,0.031036377,-0.006778717,-0.0007638931,-0.0006246567,0.0037765503,0.035614014,0.03213501,-0.016204834,0.010635376,0.024169922,-0.040985107,0.049835205,-0.0052108765,0.017288208,-0.014091492,-0.00091552734,-0.044952393,-0.02279663,-0.016677856,-0.0019931793],"createdAt":"2026-04-18T18:37:43.365Z","updatedAt":"2026-04-23T12:05:08.234Z","lastSeenAt":"2026-04-23T12:05:08.234Z","tsv":"'/api/v1/generate/resource/79':108 '/request':13,28 '0.02':12,27,86,136 '000':131 '0x1a2b13e97f5f837c8f9fa1f95a1484b7c70d85f3':148 '20':130 '300':158 '6':141 'Base network API' 'USDC pay-per-call' 'accept':116 'access':7,22,38,114 'address':147 'ai/ml':59 'analysi':62 'analyt':58 'api':6,21,37,55,95,113,167 'avail':194,227 'base':9,24,91,132,150 'behavior':222 'behind':198 'broad':48 'call':4,19,144 'cannot':223 'catalog':49 'categori':210 'challeng':122 'classif':64 'commit':103 'confirm':123,225 'connect':176 'content':182 'convers':81 'cost':85 'data':57 'decim':142 'doc':166 'document':161 'embed':65 'endpoint':32,107,208 'estim':75 'exact':154,196 'exampl':193 'exchang':70 'extrem':163 'feed':69 'financ':66 'function':197 'gas':74 'generat':82 'geocod':79 'group':207 'host':46 'http':117 'http-post' 'infer':60 'infrastructur':77 'key':96 'land':205 'limit':99 'list':110,214 'live':126 'lowpaymentfee' 'lowpaymentfee.com':34 'materi':228 'micropayment API' 'minimum':102 'network':92 'no-api-key' 'openapi':186 'page':171,206 'paid':145 'path':218 'pay':2,17,52 'pay-per-cal':1,16 'pay-per-request':51 'payment':42 'per':3,18,53,143 'post':118 'precis':221 'premium':5,20,36,112 'premium API access' 'price':68,168 'prompt':178 'protocol':43 'provid':35 'quot':73 'rate':71,98 'readm':170 'render':173 'request':54,84,119,127 'request/response':189 'requir':104 'resourc':217 'resource/79':199 'schema':190 'scheme':155 'second':159 'sentiment':61 'settlement':151 'sinc':138 'site':45,203 'span':56 'spars':164 'spec':187 'specif':106,216 'summar':63 'timeout':160 'token':72 'unclear':201 'unit':133 'usd':137 'usdc':15,30,88,135,139 'usdc-base' 'use':140,152 'util':78 'valid':80 'via':10,25,39 'wallet':177 'web3':67 'x402':11,26,41,121 'x402 API' 'x402-payment'","prices":[{"id":"de0e83b1-a601-4084-8308-1a475a0c6846","listingId":"a2e6726c-9b3a-4bbb-8c1b-7dc3114056d5","amountUsd":null,"unit":"per_call","nativeCurrency":"USD COIN","nativeAmount":"20000","chain":"base","payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","paymentMethod":"x402-usd coin","isPrimary":true,"details":{"scheme":"exact","mime_type":"application/json","accepts_all":[{"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","extra":{"name":"USD Coin","version":"2"},"payTo":"0x1A2B13E97f5F837C8F9FA1F95a1484B7C70d85F3","scheme":"exact","network":"base","mimeType":"application/json","resource":"https://lowpaymentfee.com/api/v1/generate/resource/79","description":"Premium API Access","outputSchema":{"input":{"type":"http","method":"GET","discoverable":true}},"maxAmountRequired":"20000","maxTimeoutSeconds":300}],"asset_contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","max_timeout_seconds":300},"createdAt":"2026-04-18T18:37:43.365Z"}],"sources":[{"listingId":"a2e6726c-9b3a-4bbb-8c1b-7dc3114056d5","source":"x402_bazaar","sourceId":"https://lowpaymentfee.com/api/v1/generate/resource/79","sourceUrl":"https://api.cdp.coinbase.com/platform/v2/x402/discovery/resources","isPrimary":true,"firstSeenAt":"2026-04-18T18:37:43.365Z","lastSeenAt":"2026-04-23T12:05:08.234Z"}],"details":{"listingId":"a2e6726c-9b3a-4bbb-8c1b-7dc3114056d5","quickStartSnippet":"curl -X POST https://lowpaymentfee.com/api/v1/generate/resource/79 \\\n  -H \"Content-Type: application/json\" \\\n  -H \"X-PAYMENT: <x402-payment-header>\" \\\n  -d '{}'","exampleRequest":null,"exampleResponse":null,"schema":{"input":{"type":"http","method":"GET","discoverable":true}},"openapiUrl":null,"agentsTxtUrl":null,"citations":[{"claim":"The endpoint returns a 402 x402 challenge requesting up to 20,000 base units of USDC on Base","source_url":"https://lowpaymentfee.com/api/v1/generate/resource/79"},{"claim":"The site advertises $0.02 per request with no API keys, no rate limits, and instant access on Base network","source_url":"https://lowpaymentfee.com"},{"claim":"USDC asset address 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 on Base","source_url":"https://lowpaymentfee.com/api/v1/generate/resource/79"},{"claim":"Available API categories include Data & Analytics, AI & Machine Learning, Finance & Web3, and Infrastructure","source_url":"https://lowpaymentfee.com"}],"useCases":["Programmatic access to utility or generation endpoints without managing API keys","Agent-driven workflows that pay per call using USDC on Base","Integrating low-cost API calls into Web3 applications"],"bestFor":["Developers wanting zero-signup, pay-per-use API access","AI agents with x402-compatible wallets on Base","Prototyping workflows that need cheap, keyless API calls"],"notFor":["Users who need detailed API documentation or guaranteed SLAs","Applications requiring high-throughput with predictable billing (subscription model preferred)","Anyone without a Base-compatible USDC wallet"],"kindDetails":{"x402_version":1,"resource_type":"http","bazaar_last_updated":"2026-02-17T23:14:44.11Z"},"updatedAt":"2026-04-23T12:05:08.234Z"}}